Usually you add the uplink-trunks to a "Trunk Group", but it doesn't accept adding a LACP-port in the Trunk Group.
And in the list of interfaces in the Vnic-Groups meny you can only choose one interface, and the LAG-interface is not in the list. I can only see the Physical interfaces and the Trunk Group.

Does anyone know how to do this?
Do I have to create serval Vnic-groups with the different interfaces in the LAG?

vNIC and switch stacking
A stack is a group of BNT Virtual Fabric 10Gb Switch Modules that work
together as a unified system and, therefore, is managed as a single entity.
The network views the stack as a single switch entity, and the stack can be
accessed and managed as a whole by using standard switch IP interfaces.
After the stacking links are established, the number of ports that are available
in a stack is equal to the total number of remaining ports of all the switches
that are part of the stack. The numbers of available IP interfaces, VLANs,
trunks, trunk links, and other switch attributes are not aggregated among the
switches in a stack. The totals for the stack as a whole are the same as for
any single switch that is configured in stand-alone mode.The BNT Virtual Fabric Switch supports stacking and Virtual Fabric Mode atthe same time with the most recent firmware.

vNIC and switch stacking
A stack is a group of BNT Virtual Fabric 10Gb Switch Modules that work
together as a unified system and, therefore, is managed as a single entity.
The network views the stack as a single switch entity, and the stack can be
accessed and managed as a whole by using standard switch IP interfaces.
After the stacking links are established, the number of ports that are available
in a stack is equal to the total number of remaining ports of all the switches
that are part of the stack. The numbers of available IP interfaces, VLANs,
trunks, trunk links, and other switch attributes are not aggregated among the
switches in a stack. The totals for the stack as a whole are the same as for
any single switch that is configured in stand-alone mode.The BNT Virtual Fabric Switch supports stacking and Virtual Fabric Mode atthe same time with the most recent firmware.

BNT Virtual Fabric 10Gb Switch Module Version 6.7.4.0 (Released September 2011)
Changes since the 6.7.3.0 release
Enhancements:Added the ability to use LACP trunks as vNIC-group uplinks.Added the ability for multiple vNIC groups to share the same uplink, which can be a port, static trunk, or LACP trunk.

vNIC and switch stacking
A stack is a group of BNT Virtual Fabric 10Gb Switch Modules that work
together as a unified system and, therefore, is managed as a single entity.
The network views the stack as a single switch entity, and the stack can be
accessed and managed as a whole by using standard switch IP interfaces.
After the stacking links are established, the number of ports that are available
in a stack is equal to the total number of remaining ports of all the switches
that are part of the stack. The numbers of available IP interfaces, VLANs,
trunks, trunk links, and other switch attributes are not aggregated among the
switches in a stack. The totals for the stack as a whole are the same as for
any single switch that is configured in stand-alone mode.
The BNT Virtual Fabric Switch supports stacking and Virtual Fabric Mode at
the same time with the most recent firmware

Re: Configure Vnic-groups on Stacked swtiches with LACP

BNT Virtual Fabric 10Gb Switch Module Version 6.7.4.0 (Released September 2011)
Changes since the 6.7.3.0 release
Enhancements:Added the ability to use LACP trunks as vNIC-group uplinks.Added the ability for multiple vNIC groups to share the same uplink, which can be a port, static trunk, or LACP trunk.

vNIC and switch stacking
A stack is a group of BNT Virtual Fabric 10Gb Switch Modules that work
together as a unified system and, therefore, is managed as a single entity.
The network views the stack as a single switch entity, and the stack can be
accessed and managed as a whole by using standard switch IP interfaces.
After the stacking links are established, the number of ports that are available
in a stack is equal to the total number of remaining ports of all the switches
that are part of the stack. The numbers of available IP interfaces, VLANs,
trunks, trunk links, and other switch attributes are not aggregated among the
switches in a stack. The totals for the stack as a whole are the same as for
any single switch that is configured in stand-alone mode.
The BNT Virtual Fabric Switch supports stacking and Virtual Fabric Mode at
the same time with the most recent firmware

Re: Configure Vnic-groups on Stacked swtiches with LACP

BNT Virtual Fabric 10Gb Switch Module Version 6.7.4.0 (Released September 2011)
Changes since the 6.7.3.0 release
Enhancements:Added the ability to use LACP trunks as vNIC-group uplinks.Added the ability for multiple vNIC groups to share the same uplink, which can be a port, static trunk, or LACP trunk.

vNIC and switch stacking
A stack is a group of BNT Virtual Fabric 10Gb Switch Modules that work
together as a unified system and, therefore, is managed as a single entity.
The network views the stack as a single switch entity, and the stack can be
accessed and managed as a whole by using standard switch IP interfaces.
After the stacking links are established, the number of ports that are available
in a stack is equal to the total number of remaining ports of all the switches
that are part of the stack. The numbers of available IP interfaces, VLANs,
trunks, trunk links, and other switch attributes are not aggregated among the
switches in a stack. The totals for the stack as a whole are the same as for
any single switch that is configured in stand-alone mode.
The BNT Virtual Fabric Switch supports stacking and Virtual Fabric Mode at
the same time with the most recent firmware

If you want to have a LACP uplink in a VNIC-Group you cannot have the switches stacked together, they must be standalone.
And you have to configure this in the CLI, you'll choose the LACP admin-key as the uplink port.

Re: Configure Vnic-groups on Stacked swtiches with LACP

If you want to have a LACP uplink in a VNIC-Group you cannot have the switches stacked together, they must be standalone.
And you have to configure this in the CLI, you'll choose the LACP admin-key as the uplink port.

Re: Configure Vnic-groups on Stacked swtiches with LACP

‏2013-02-20T16:59:44Z

This is the accepted answer.
This is the accepted answer.

In the vnic vnicgroup configuration, add the LACP key number of the LACP aggregation you wish to use as the uplink;

sw7(config)#vnic vnicgroup 1 sw7(vnic-group-config)#? vNIC group configuration mode enable Enable the vNIC group exit Exit vNIC group configuration mode failover Enable uplink failover in the vNIC group key Add the uplink LACP trunk to the vNIC group member Add vNICs to the vNIC group no Negate a command or set its defaults port Add non-vNIC ports or the uplink port to the vNIC group trunk Add the uplink trunk to the vNIC group vlan Set vNIC group vlan sw7(vnic-group-config)#key 1001 ? <cr>

In the vnic vnicgroup configuration, add the LACP key number of the LACP aggregation you wish to use as the uplink;

<pre class="jive-pre">
sw7(config)#vnic vnicgroup 1 sw7(vnic-group-config)#? vNIC group configuration mode enable Enable the vNIC group exit Exit vNIC group configuration mode failover Enable uplink failover in the vNIC group key Add the uplink LACP trunk to the vNIC group member Add vNICs to the vNIC group no Negate a command or set its defaults port Add non-vNIC ports or the uplink port to the vNIC group trunk Add the uplink trunk to the vNIC group vlan Set vNIC group vlan sw7(vnic-group-config)#key 1001 ? <cr>
</pre>

Re: Configure Vnic-groups on Stacked swtiches with LACP

In the vnic vnicgroup configuration, add the LACP key number of the LACP aggregation you wish to use as the uplink;

<pre class="jive-pre">
sw7(config)#vnic vnicgroup 1 sw7(vnic-group-config)#? vNIC group configuration mode enable Enable the vNIC group exit Exit vNIC group configuration mode failover Enable uplink failover in the vNIC group key Add the uplink LACP trunk to the vNIC group member Add vNICs to the vNIC group no Negate a command or set its defaults port Add non-vNIC ports or the uplink port to the vNIC group trunk Add the uplink trunk to the vNIC group vlan Set vNIC group vlan sw7(vnic-group-config)#key 1001 ? <cr>
</pre>